Servicing arrangement for spinning machines



SERVICING ARRANGEMENT FOR SPINNING MACHINES Filed June 20, 1966 April 2, 1968 1.. BURES ETAL 2 Sheets-Sheet 2 INZZNTOR M M IMAM (A In Ama ie United States Patent 3,375,649 SERVICING ARRANGEMENT FOR SPINNING MACHINES Ladislav Bures, Ct'ibor Doudlebsky', and Arkadij Barsukov, Usti nad Orlici, Czechoslovakia, assignors to Vyzkumny ustav Bavlnarsky, Usti nad Orlici, Czechoslovakia Filed June 20, 1966, Ser. No. 558,872 Claims priority, application Czechoslovakia, Nov. 16, 1965, 6,821/65 Claims. (Cl. 57--58.91)

The present invention relates to a servicing arrangement for spinning machines, and more particularly to an arrangement for independently inspecting and servicing individual spinning units of a spinning machine.

Known spinning machines comprise a series of spinning units, each of which includes a rotary spinning chamber, feeding and combing means for feeding a sliver into the rotary spinning chamber, and a discharge channel through which the finished yarn is withdrawn. Spinning devices in which the fibers are combed out by a rotating combing roller and transported into the rotary spinning chamber have the disadvantage that if a spinning device becomes clogged by fibers, the spinning chamber, the combing roller and the inlet and discharge channels are not readily accessible so that the respective spinning unit must be disassembled in a time consuming and difiicult operation.

Another machine for continuous spindleless spinning is known in which a plurality of spinning units is arranged in a row on a machine frame, and where feed rollers are provided for the supply of the slivers, and drawoif rollers for withdrawing the finished yarn from the spinning chambers. The drive means for the rotary spinning chambers, combing rollers, feeding rollers and drawoff rollers include a main shaft or shafts extending along the row of spinning units and driving all rotary elements of the spinning units simultaneously. However, in a known spinning machine, the feed rollers are connected with a drive means by separate couplings, controlled by sensing means which sense an improper operation, so that the feed rollers of the several units can be individually stopped in the event of a yarn breakage. The rotary spinning chamber, and other rotary spinning means continue to rotate even after the supply of the sliver by the feed roller has been stopped and if it becomes necessary to clean one spinning unit, or more particularly its spinning chamber, the inlet or discharge channels, or to repair a spinning unit, it is not possible to individually disengage the respective spinning unit from the drive means, and it is necessary to stop the entire machine and all spinning units, while one spinning unit is being serviced or repaired resulting in a reduced output and economic losses.

It is one object of the invention to overcome these disadvantages of known spinning machines and to provide a servicing arrangement for spinning machines permitting the individual servicing of each spinning unit of the machine.

Another object of the invention is to provide a spinning machine in which each spinning unit can be individually separated from the common drive means of the spinning machine so that, while one spinning unit is being serviced, the other spinning units continue to operate.

Another object of the invention is to provide a spinning unit having first and second parts, each of which includes spinning means, and to mount the parts movable between separated and operative positions so that the spinning means are fully accessible when the two parts of a unit are separated.

Another object of the invention is to automatically separate the spinning means of each unit from the drive means of the machine when the above-mentioned two parts of the spinning unit are separated for the purpose of 3,375,649 Patented Apr. 2., 1968 having access to the spinning means, so that the spinning means are automatically stopped when placed in a position suitable for servicing.

Another object of the invention is to provide a spinning unit comprising two parts one of which carries a rotary spinning chamber and the other of which carries a separator having a discharge passage coinciding with the axis of rotation of the spinning chamber in the normal working position of the spinning unit, while upon separation of the two parts of the spinning unit, the separator and discharge passage are located outside of the spinning chamber and spaced from the same so that the spinning chamber and the discharge passage can be cleaned.

With these objects in view, a spinning unit according to the invention comprises first and second supports, first rotary spinning means mounted on the first support for rotation about a first axis, and second spinning means mounted on the second support and having a second axis. The first and second supports are mounted on a frame for movement between two positions for moving the first and second spinning means between a normal working position in which the axes of the first and second spinning means coincide and the same cooperate in a spinning operation, and an inoperative position in which the first and second spinning means are separated and accessible for inspection and service.

In the preferred embodiment of the invention, the first and second supports are mounted on the frame of the machine for angular movement about parallel hinge axes. The first spinning means includes the rotary spinning chamber, and the second spinning means includes a part, such as a separator having a central discharge passage, located in the spinning chamber in the working position of the spinning unit, but moving out of the spinning chamber in the inoperative position of the unit where both the spinning chamber and the separator are accessible.

In the preferred embodiment of the invention, drive means, such as belts, extend along a machine frame on which a plurality of spinning units is mounted. Each spinning unit includes rotary spinning means, and coupling means, such as a pulley, connected with the spinning means for rotation. In the normal working position of the spinning unit, the pulleys engage the belts of the drive means so that the spinning means are coupled withthe .drive means and are driven. When any spinning units requires inspection or servicing, it is moved to an inoperative position in which the pulley, or other coupling means, is separated from the drive means so that the spinning means do not rotate and are at rest. In this manner, each unit can be inde endently serviced, without disturbing the continued operation of the spinning means of all other units of the machine.

When the first and second supports of a spinning unit are separated to permit access to the spinning means supported thereby, the coupling means of both spinning means are separated from the drive means so that the spinning means of both parts of the spinning unit stop.

The novel features which are considered as characteristic for the invention are set forth in particular in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings, in which:

FIG. 1 is a front elevation of the spinning machine having a plurality of spinning units according to the invention;

FIG. 2 is a fragmentary perspective view partially in section, illustrating a spinning unit in the normal Working position;

FIG. 3 is a fragmentary side view, partially in vertical section illustrating a spinning unit in the normal working position;

FIG. 4 is a fragmentary side elevation, partially in vertical section, illustrating the spinning unit of FIGS. 2 and 3 in an inoperative position for inspection and service;

FIG. 5 is partly a fragmentary schematic elevation illustrating a transmission for driving spinning means, and partly a diagram illustrating an electric circuit; and

FIG. 6 is a fragmentary side elevation, partially in vertical section illustrating a position of the unit intermediate the positions of FIGS. 3 and 4.

Referring now to the drawings, drive means are mounted on a machine frame 1, and include first belt 2 guided over a pair of pulleys 2a, one of which is secured to a pulley 2b which is connected by another belt 20 to the pulley of a motor 2d. The drive means further include another belt 4 guided over pulleys 4a and driven by a motor 417. A shaft 6, located in a tubular member 8, is also driven by a motor, not shown, and forms part of the drive means. The motors for belts 2, 4 and for shaft 6 are located in a first end casing 9 and tensioning and guiding pulleys for the belts are located in the other end casing 10.

A vertical wall 11 extends along the frame and carries a row of spinning units, one of which is shown in the normal working position in FIGS. 2 and 3.

Referring now to FIGS. 2 to 6, brackets 12 are secured to the vertical wall 11 and support a hinge pin 13 on which a first support casing 14 is mounted for angular movement between the normal position shown in FIGS. 2 and 3, and the inoperative position shown in FIG. 4.

A second support casing 17 is mounted on the tubular member 8 for angular movement about a second hinge axis coinciding with the axis of tubular member 8, and for movement between the normal position shown in FIGS. 2 and 3, and the inoperative position shown in FIG. 4. Support casing 17 has a catch projection 18 cooperating with a latch 57 which is part of a bell crank lever 56 which has a handle 58, and is mounted on hinge pin 13. Latch 56, 57 is spring-loaded or may be gravity operated to snap behind catch 18 when support housings 14 and 17 are placed in the normal position shown in FIGS. 2 and 3, but upon actuation of handle 58, latch 57 will release catch 18, and support casing 17 will drop to the tilted inoperative position shown in FIG. 4, while support casing 14 will be pulled by a resilient connecting means 16 to the inoperative tilted position shown in FIG. 4. When the support casing 17 is pushed back from the position of FIG. 4 in clockwise direction, a springloaded pin 49 slidably mounted in a bore of support casing 17, engages support casing 14 and pushes the same to the normal position of FIG. 3 in which the rear face 19 of support casing 14 abuts wall 11. When both support casings are in the normal position shown in FIG. 3, latch 57 snaps over catch 18, and the spinning unit is operative. All spinning units of the row of spinning units mounted on the frame, are constructed in the same manner.

Support casing 14 rotatably supports spinning means in the form of a spinning chamber 3, whose shaft projects out of support casing 14 and carries a pulley engaging the surface of belt 2 in the normal working position, so that the spinning chambers of all spinning units are simultaneously driven by drive belt 2 which extends along the length of frame 1 as explained with reference to FIG. 1. A rail 22 extending along the frame carries a brake lining 21 which is located opposite and parallel to belt 2, and positioned so as to be engaged by pulley 15 when support casing 14 is in the tilted position of FIG. 4.

Consequently, the spinning chambers 3 of all spinning units of the row are simultaneously driven when the spinning units are in the normal operative position, but if any spinning unit is opened by operation of handle 58, and support casings 14, 17. assume the position of FIG. 4,

the respective spinning chamber 3 will be disengaged from the drive means since pulley 15 moves away from belt 2, and will be braked by the brake means 21, 22

engaging pulley 15 of spinning chamber 3, so that the same is immediately stopped; and the brake effect can be increased if the operator exerts a downward pull on support casing 17 so that connecting means 16 transmits a force to support casing 14which urges the same to turn in clockwise direction whereby pulley 15 is pressed against the brake lining 21. As clearlyshown in FIG. 4, support casing 14 has a circular opening 15 in front of spinning chamber 3, so that the spinning chamber is accessible and accummulated fibers can be cleaned out. 7

Support casing 17 is substantially L-shaped and has a lower casing portion mounted on shaft 8 in which a drive shaft 6 is located, as described with reference to FIG. 1. A gear 23 is fixed to drive shaft 6, as best seen in FIG. 5, and has a peripheral portion projecting out of a slot in tubular member 8 and meshing with a gear 25 located in a cavity 26 and mounted on a shaft 27 freely rotatable, but non-movable in axial direction. Gear 25 is integral with a coupling part 28a having fingers cooperating with fingers of another coupling part 28 which is secured to shaft 27 for rotation therewith and,

is movable in axial direction between a coupling position in which the fingers of coupling parts 28a, and 28 engage each other, and shaft 27 is driven from shaft 6, and a disengaged position in which the coupling parts 28a, and 28 are axially spaced. Coupling part 28 has an armature portion surrounded by electromagnetic winding 29, and engaged by a spring 46 which biasses coupling part 28 to move in axial direction to a coupling position engaging coupling part 28a. However, when winding 29 is energized, the force of spring 46 is overcome, coupling part 28 moved to a disengaged position, and the driving connection between drive shaft 6 and shaft 27 is interrupted.

Winding 29 is connected to a power source 45 over a sensing switch 42 which is normally open, and is closed when sensing a disturbance in the spinning operation, as will be described hereinafter. A capacitor 60 and a resistor 61 are connected in parallel with sensing switch 42, and a signal lamp 44 has one terminal directly connected to power source 45 and the other terminal connected over resistor 61 and sensing switch 42 to the power source so that upon closure of sensing switch 42, signal lamp 44 will be energized, but at a lesser voltage than winding 29. Capacitor 60 prevents sparking of the contacts of switch 42.

Signal lamp 44 is located in a housing part 53 and illuminates a translucent plate 54 which has an edge portion located on the surface of support casing 17, which is illuminated by light diffused in translucent plate 54 when signal lamp 42 lights up. Housing part 53 also supports the feeler of sensing switch 42 opposite the discharge tube for the spun fibers.

Shaft 27 carries a worm gear 30 meshing with gear means 31 secured to shaft means 32 carrying feed roller means 33 for feeding the sliver or roving 34 into the inlet channel 36 in support casing 17, as best seen in FIG. 3.

A fiber separating or combing roller 5 .is also located in inlet channel 36 and combs the sliver 34. Combing roller 5 is mounted on a shaft 47 supported in casing 17 and carrying a pulley 48 meshing with drive belt 4 which extends along the length of frame 1, as described with reference to FIG. 1, so that the pulleys 48 of all spinning units are simultaneously driven as long as the spinning units are in the normal working position shown in FIG. 3. If any spinning unit is to be inspected and placed in the inoperative position of FIG. 4 in which support casing 17 is downward tilted, pulley 48 of the respective spinning unit is separated from drive belt 4,. and the combing roller 5 is no longer driven.

In the normal Working position of the spinning units, the sliver 34 is fed to the combing roller 5 which sepa-- rates the fibers which pass through channel 36 further past a separator 38 which directs the fibers toward the rotating inner surface of spinning chamber 3 so that the fibers are spun and produce a filament or yarn 40 which passes through a central passage 51 in separator 38, a discharge channel in support casing 17 terminating in discharge tube 41 and finally between a pair of transporting rollers 40a, as shown in FIG. 3, while holding a feeler of sensing switch 42. In the event of a yarn breakage, feeler 42 will be released and sensing switch 42 will close, so that winding 29 is energized, coupling means 28, 28a disengaged, and feed roller means 33 stopped so that the sliver 34 is no longer transported toward combing roller and spinning chamber 3 which continue to rotate in the position of FIG. 3. Signal lamp 44 also lights up when switch 42 closes, so that the edge of translucent plate 54 is illuminated, calling the attention of the operator to the respective spinning unit where the thread breakage occurred.

If the operator decides to inspect a spinning unit in which a yarn breakage occurred, or which requires servicing, he releases latch 57 by operation of handle 58, whereupon support casing 17 is first urged by the springloaded pin 45 to turn to the position shown in FIG. 6 in which separator 38 has moved out of spinning chamber 3 and through opening 50 in support casing 14. At the same time, pulley 48 separates from driving belt 4, so that combing roller 5 stops.

Thereupon support casing 17 drops further to the position shown in FIG. 4, and when pin 49 releases the front wall of support casing 14, the same tends to assume the tilted position shown in FIG. 4 by the action of the force of gravity, and is held in the tilted position by connecting means 16 due to the Weight of support casing 17. During the tilting movement of support casing 14 with spinning chamber 3, pulley separates from drive belt 2 and engages the braking surface 21 so that spinning chamber 3 is stopped.

Spinning chamber 3 is now completely accessible through opening 50, and separator passage 39 and the other passages in support casing 17 are also accessible for inspection and servicing, so that clogging fiber deposits can be removed from the spinning means in casing 14 and from the spinning means in casing 17.

It is absolutely necessary that the axis of rotation of the spinning chamber 3 coincides with the discharge passage 39 of separator 38 in the normal working position of FIG. 3. The hinge axes formed by hinge pin 13 and tubular member 8, are parallel, and when support casings 14 and 17 assume the tilted position shown in FIG. 4, the axis of rotation of spinning chamber 3 and discharge passage 39 are located in a common plane. Due to the fact that a plane passing through the hinge axes is perpendicular to the axis of rotation of spinning chamber 3 in the normal working position, separator 38 moves substantially in the direction of the axis of rotation of spinning chamber 3 from its operative position shown in FIG. 3 to the position shown in FIG. 6 so that separator 38 clears the opening 50.

It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of spinning units differing from the types described above.

While the invention has been illustrated and described as embodied in a servicing arrangement for a spinning machine permitting individual stopping and inspection of each spinning unit, it is not intended to be limited to the details shown since various modifications and structural changes may be made without departing in any way from the spirit of the present invention.

Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can by applying current knowledge readily adapt it for various applications without omitting features that from the standpoint of prior art fairly constitute essential characteristics 6 of the generic or specific aspects of this invention and, therefore such adaptations should and are intended to be comprehended within the meaning and range of equivalence of the following claims.

What is claimed as new and desired to be secured by Letters Patent is:

1. A spinning machine comprising, in combination, at least one spinning unit comprising first and second supports, first spinning means mounted on said first support for rotation about a first axis, and second spinning means mounted on said second support and having a second axis; and frame means supporting said first and second supports for movement between two positions for moving said first and second spinning means between a normal working position in which said first and second axes coincide and said first and second spinning means cooperate, and an inoperative position in which said first and second spinning means are separated and accessible for inspection and service.

2. A spinning machine according to claim 1 wherein said first and second supports are mounted on said frame means for angular movement about parallel hinge axes.

3. A spinning machine according to claim 2 wherein said first and second axes of said first and second spinning means are located in a common plane in said inoperative position of said first and second spinning means.

4. A spinning machine according to claim 1 wherein said first spinning means includes a rotary spinning chamber, and wherein said second spinning means includes a separator having a central discharge passage extending along said second axis; and wherein said separator is located in said spinning chamber in said normal working position, and located spaced from the spinning chamber in said inoperative position so that said discharge passage and the interior of said spinning chamber are accessible in said inoperative position.

5. A spinning machine according to claim 1 wherein said second support is formed with an inlet channel for a sliver and with a discharge channel for a spun yarn; wherein said second spinning means includes a feed roller; and comprising drive means; electromagnetic coupling means having a normal coupling position for coupling said drive means with said feed roller, and a disengaged position; a feeler for sensing the discharged yarn; and an electric circuit including a switch operated by said feeler and connected with said electromagnetic coupling means for de-energizing the same when said feeler senses a thread breakage.

6. A spinning machine according to claim 5 wherein said second support includes a casing, and an at least partly translucent plate having an edge extending along the surface of said casing; and comprising a signal lamp for illuminating said translucent plate and thereby said edge; and wherein said signal lamp is connected into said circuit and energized when said sensing switch closes.

7. A spinning machine according to claim 1 wherein said first and second supports include first and second casings mounted on said frame means for angular movement about parallel hinge axes, each of said first and second casings being angularly movable about the respective hinge axis between a normal operative position, and a tilted inoperative position in which said first and second spinning means are separated and spaced from each other; said spinning unit comprising a resilient connecting means secured to said second casing and engaging said first casing during movement of said second casing to said inoperative position for moving said first casing from said operative position to said inoperative position, and for holding said first casing in said inoperative position while said second casing remains in said inoperative position thereof.

8. A spinning machine according to claim 7 wherein said spinning unit comprises a spring-loaded pin mounted on said second casing and engaging said first casing in said normal working position so as to be resiliently compressed, said spring-loaded pin engaging said first casing during movement of said second casing from said inoperative position to said operative position thereof for moving said first casing from said inoperative position to said operative position thereof whereupon said pin is resiliently displaced.

9. A spinning machine according to claim 8 wherein said spinning unit comprises a catch secured to said second casing, and a manually operated latch secured to said first casing and engaging said catch in said normal Working position for holding said second casing in said operative position of the same against the action of said springloaded pin.

10. A spinning machine according to claim 1 wherein said spinning unit includes first and second hinge means mounted on said frame; wherein said first and second supports include first and second casings respectively mounted on said hinge means for angular movement about parallel hinge axes, wherein said first spinning means includes a rotary spinning chamber mounted in said first casing, wherein said second spinning means includes a separator having a discharge passage for a spun yarn extending along the axis of said spinning chamber, and being at least partly located in the same in said normal working position, said discharge passage and said axis of said spinning chamber being located in a common plane in said inoperative position, said common plane extending perpendicular to a plane passing through said hinge axes; wherein said spinning unit includes resilient connec ing means connecting said second casing with said first casing in said inoperative position so that said first casing is tilted out of its normal position to a tilted inoperative position by the weight of said second casing; other resilient means for urging said first casing to its normal position during movement of said second casing from the in operative position thereof to the normal working position for tilting said first easing back to its normal position; and manually operated latch means for holding said second casing and said first casing in said normal working position.

11. A spinning machine comprising, in combination, frame means; drive means supported on said frame means; and a plurality of spinning units mounted on said frame means, each spinning unit including support means, rotary spinning means mounted on said support means, and coupling means connected with said spinning means for rotation, said support means of each spinning unit being mounted on said frame means for movement between a normal working position in which the respective coupling means is coupled with said drive means so that said spinning means are driven, and an inoperative position for inspection and service in which the respective coupling means is separated from said drive means so that said spinning means of the respective spinning unit are at rest, while the spinning means of the other spinning units continue to be driven by said drive means.

12. A spinning machine according to claim 11 wherein said spinning units are arranged in a row along said frame means; wherein said drive means include at least one drive belt extending along said row; and brake means secured to said frame means and extending along said row; and wherein each of said coupling means of said spinning units includes a pulley engaging said drive belt in said normal working position of the respective spinning unit and being spaced from said drive belt in said inoperative position of said spinning unit for engaging said brake means whereby to stop said spinning means.

13. A spinning machine according to claim 11 wherein said support means of each spinning unit includes first and second supports mounted on said frame means for angular movement about first and second parallel hinge axes respectively, between inoperative and operative positions so that the respective spinning unit is in a normal working position when said first and second supports are both in said operative positions; wherein said rotary spinning means of each spinning unit include first rotary spinsupports are in said inoperative positions so that said first and second spinning means are driven in said normal working position of said spinning unit, and disconnected from said drive means in the inoperative position of the spinning unit.

14. A spinning machine according to claim 13 wherein said spinning units are disposed in a row; wherein said, drive means include first and second drive belts extending along said row; and wherein said first and second coupling means include first and second pulleys respectively con: nected with said first and second spinning means for rotation, and engaging said first and second drive belts, respectively, in said operative positions of said casings, and are spaced from said belts in said inoperative positions of said casings.

15. A spinning machine according to claim 13 wherein said first spinning means include a rotary spinning chambet, and said second spinning means include a rotary combining means, and a separator having a dlscharge passage extending in the direction of the axis of rotation of said spinning chamber, and being at least partly located in the same in said normal working position of said spinning unit and being located outside of said spinning chamber and in a common plane with said axis of rotation of said spinning chamber in said inoperative position of said spinning unit.

16. A spinning machine according to claim 15 wherein said spinning units are di posed in a row on said frame means; and wherein said drive means include a drive shaft extending along said row; wherein said second spinning means include a feed roller for transporting a sliver to said combing means and separator; and wherein each spinning unit comprises electromagnetic coupling means having a normal coupling position connecting said drive shaft with said feed roller, and a disengaged position; and sensing means for sensing a yarn spun by said spinning means, and controlling said electromagnetic coupling to disengage said feed roller from said drive shaft when said yarn breaks.

17. A spinning machine according to claim 16 wherein said frame means includes an elongated tubular member extending along said row of spinning units, and enveloping said drive shaft; and wherein said second support of each of said spinning units is mounted on said tubular member for angular movement about the respective hinge axis.

18. A spinning machine according to claim 13 wherein said first and second supports respectively include first and second casings; and including connecting means for connecting said first and second casings in said inoperative positions, said second casing and second spinning means having a center of gravity disposed so that said second casing tends to move to said inoperative position thereof and pulls said first casing through said connecting means into the inoperative position of the same.

19. A spinning machine according to claim 18 wherein said first spinning means includes a spinning chamber mounted on said first casing for rotation about an axis, and wherein said first casing is formed with an opening opposite said spinning chamber and permitting access to the same in said inoperative position; and wherein said second spinning means includes a separator at least partly located in said spinning chamber in said normal working position of each spinning unit and having a central discharge passage coinciding with said axis of rotation in said normal Working position and being located in a common plane with the same in said inoperative position; and wherein said second casing is supported on said frame means in such a manner that said separator moves substantially in the direction of said axis of rotation during the first part of the movement of said second casing from said operative position to said inoperative position so that said separator passes through said opening clearing the same.

20. A spinning machine according to claim 11 wherein said spinning units are arranged in a row along said frame means; wherein said drive means include a drive member extending along said row of spinning units; and wherein each of said coupling means is coupled with said drive member in said normal working position of the respective spinning unit, and is disengaged from the same in said inoperative position of the respective spinning unit so that the spinning means of each spinning unit in the inoperative position are stopped, while the spinning means of other spinning units in said normal working position are driven by said drive member.

References Cited UNITED STATES PATENTS 1/1964 Meimberg 57-5895 XR 9/1967 Brown 57-58.91 

1. A SPINNING MACHINE COMPRISING, IN COMBINATION, AT LEAST ONE SPINNING UNIT COMPRISING FIRST AND SECOND SUPPORTS, FIRST SPINNING MEANS MOUNTED ON SAID FIRST SUPPORT FOR ROTATION ABOUT A FIRST AXIS, AND SECOND SPINNING MEANS MOUNTED ON SAID SECOND SUPPORT AND HAVING A SECOND AXIS; AND FRAME MEANS SUPPORTING SAID FIRST AND SECOND SUPPORTS FOR MOVEMENT BETWEEN TWO POSITIONS FOR MOVING SAID FIRST AND SECOND SPINNING MEANS BETWEEN A NORMAL WORKING POSITION IN WHICH SAID FIRST AND SECOND AXES COINCIDE AND SAID FIRST AND SECOND SPINNING MEANS COOPERATE, AND SPINNING MEANS ARE SEPARATED AND ACCESSIBLE FOR INSPECTION AND SERVICE. 